<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>cutom_input</title>
    <script src="https://cdn.bootcss.com/vue/2.6.10/vue.js"></script>
</head>
<body>
    <div id="app">
        <custom-input v-model="searchText"></custom-input>
        <p style="color: red;">{{ searchText }}</p>
    </div>
    <script>
        Vue.component('custom-input', {
            props: ['value'],
            template: `
                <input
                    v-bind:value="value"
                    v-on:input="$emit('input', $event.target.value)"
                ></input>
            `
        });
        var app = new Vue({
            el: '#app',
            data: {
                searchText: ''
            }
        });
    </script>
</body>
</html>
